[INFO] fetching crate stt 0.0.1...
[INFO] testing stt-0.0.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate stt 0.0.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate stt 0.0.1
[INFO] finished tweaking crates.io crate stt 0.0.1
[INFO] tweaked toml for crates.io crate stt 0.0.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stt 0.0.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate stt 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 782c42d30da765ccb2cd72aa1332d5d8460965b930945b26d5dd45c29d2a8bfd
[INFO] running `Command { std: "docker" "start" "-a" "782c42d30da765ccb2cd72aa1332d5d8460965b930945b26d5dd45c29d2a8bfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "782c42d30da765ccb2cd72aa1332d5d8460965b930945b26d5dd45c29d2a8bfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "782c42d30da765ccb2cd72aa1332d5d8460965b930945b26d5dd45c29d2a8bfd", kill_on_drop: false }`
[INFO] [stdout] 782c42d30da765ccb2cd72aa1332d5d8460965b930945b26d5dd45c29d2a8bfd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c686d156244780ae12af440988f27ff8616f32303c59757b78c89cdb7165d346
[INFO] running `Command { std: "docker" "start" "-a" "c686d156244780ae12af440988f27ff8616f32303c59757b78c89cdb7165d346", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]    Compiling bytemuck v1.12.3
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling bindgen v0.61.0
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling symphonia-core v0.5.1
[INFO] [stderr]    Compiling strength_reduce v0.2.4
[INFO] [stderr]    Compiling bitreader v0.3.6
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling ogg v0.7.1
[INFO] [stderr]    Compiling anyhow v1.0.66
[INFO] [stderr]    Compiling cc v1.0.76
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling dasp_sample v0.11.0
[INFO] [stderr]    Compiling clang-sys v1.4.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling caf v0.1.0
[INFO] [stderr]    Compiling rustfft v6.1.0
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling claxon v0.4.3
[INFO] [stderr]    Compiling hound v3.5.0
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling dasp_frame v0.11.0
[INFO] [stderr]    Compiling stt v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling lewton v0.9.4
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c686d156244780ae12af440988f27ff8616f32303c59757b78c89cdb7165d346", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c686d156244780ae12af440988f27ff8616f32303c59757b78c89cdb7165d346", kill_on_drop: false }`
[INFO] [stdout] c686d156244780ae12af440988f27ff8616f32303c59757b78c89cdb7165d346